Picture This (11-14)

This resource from Siemens encourages students to think about medical diagnosis and how information can assist the doctor in being effective and accurate.

Students are asked to suggest ideas about the characteristics of a useful image to support a medical diagnosis. They then look at the properties of sound, how sound is made and how sound travels as a wave.

After exploring the idea that humans can hear sound within a certain range of frequencies and that other sounds (ultrasound) exist at higher frequencies, students then carry out a research task into how bats use high frequency sounds. Finally, they apply their knowledge to explain how ultrasound images are formed of the inside of the body.

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